Registering error after migration of the server

ljfdishangti 1 month ago 0

I migrate my server and changed a domain. I just deleted the old server and migrated files which FileRun stored to the new server. But when I tried to register a new domain for getting update,  I found it said the domain has been registered, but I don't know I registered it with which of my email addresses, since I've tried all the emails but it's none of them.